Preface


Why I Wrote This Book

When I first learned to program, I found the process of testing and debugging very frustrating. I can remember slamming my fist down on the hard metal shell of the Selectric typewriters we used to interact with the time-sharing system at the amazing speed of 15 characters per second. The bugs didn’t disappear any more quickly for the beating. None of my professors taught me anything about testing and debugging that I can remember.

During the nearly 30 years that I have worked in software development, many aspects of the profession have changed. Languages have become popular and gone out of favor. Better development methodologies have been introduced, only to be replaced by yet more sophisticated methodologies. Microprocessors have become ubiquitous, and software has become the driving force behind many new products. The laptop computer that I wrote this book on has a faster processor, more memory, and more disk space than the multimillion dollar IBM mainframe on which I learned to program.

Some things have not changed, however. Software products still contain far too many bugs. Software developers still spend far too much time finding and fixing those bugs. People who are learning to program spend far too much time struggling to learn by trial and error.

I wrote this book because I wanted to introduce a systematic approach to debugging to a wide audience. If you learn something from this book that enables you to find and fix bugs more quickly, then I will have succeeded.




Debugging by Thinking. A Multidisciplinary Approach
Debugging by Thinking: A Multidisciplinary Approach (HP Technologies)
ISBN: 1555583075
EAN: 2147483647
Year: 2002
Pages: 172

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